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Preparation of recycled graphite/expanded polystyrene by a facile solvent dissolution method

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Abstract

In this paper, the waste graphite/expanded polystyrene was used as a raw material to prepare recycled graphite/expanded (rGEPS) foam board. A convenient and facile way to regenerate graphite/polystyrene beads was proposed in this work. This can be applied in the further industrial production. The solvent could be recycled, which made the process more efficient and economic. The rGEPS beads were analyzed by TGA, FTIR and XRD. The results indicated that the properties were not deteriorated. Then, the test results of rGEPS foam board, such as water absorption, apparent density, bending strength, compressive strength, thermal conductivity and oxygen index, showed that the properties have reached enterprise standards of expanded polystyrene (EPS) foam board. The thermal conductivity was decreased by 13.16% compared with EPS foam board. Therefore, the prepared rGEPS foam board could be considered as a candidate of the thermal insulation materials in construction.

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Acknowledgements

This work was supported by the Graduated Innovation Fund of Jilin University (Project 2015082).

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Authors and Affiliations

  1. College of Chemistry, Jilin University, Changchun, 130012, People’s Republic of China

    Jiaqi Yang, Shu Li, Haifeng Jiang, Yifei Shao, Yan Gao & Junfeng Li

  2. MOE Key Laboratory of Space Applied Physics and Chemistry, Shanxi Key Laboratory of Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi’an, 710072, People’s Republic of China

    Caiyun Su

  3. School of Energy and Power Engineering, Northeast Electric Power University, Jilin, 132012, People’s Republic of China

    Haifeng Jiang

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  1. Jiaqi Yang
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Correspondence to Junfeng Li.

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Yang, J., Li, S., Jiang, H. et al. Preparation of recycled graphite/expanded polystyrene by a facile solvent dissolution method. J Mater Sci 54, 1197–1204 (2019). https://doi.org/10.1007/s10853-018-2890-3

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  • DOI: https://doi.org/10.1007/s10853-018-2890-3

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